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- From: crawfis@ramius.ocf.llnl.gov (Roger Crawfis)
- Newsgroups: comp.sys.sgi
- Subject: Re: Inventor experience
- Keywords: IRIS Inventor
- Message-ID: <141312@lll-winken.LLNL.GOV>
- Date: 12 Nov 92 20:21:41 GMT
- References: <1992Nov11.084715.14929@cophos.co.at>
- Sender: usenet@lll-winken.LLNL.GOV
- Reply-To: crawfis@ramius.ocf.llnl.gov (Roger Crawfis)
- Distribution: comp.graphic.sgi
- Organization: Lawrence Livermore National Laboratory
- Lines: 48
- Nntp-Posting-Host: ramius.ocf.llnl.gov
-
- In article <1992Nov11.084715.14929@cophos.co.at>, js@cophos.co.at (Jodok
- Schaeffler) writes:
- |> Our organization is developing a viewer for rendering applications.
- |> In the moment we are discussing about using IRIS Inventor to do
- |> the graphics work. What we have to deal with are mainly triangle meshes.
- |> I think about inserting the mesh data into the scene database and
- |> let Inventor do all the data housekeeping work in addition to the
- |> rendering. We need pick functionality also, so Inventor seems a
- |> quite good tool for our needs to me.
- |>
- |> So what is the problem? Nobody here has experience in using Inventor.
- |> I would appreciate any kind of information from Inventor users with
- |> experience in similar applications. To give you an idea of the
- |> complexity of our application: we are expecting a couple of thousand
- |> polygons meshed into triangles in the order of ten to houndred each.
- |> Is this complexity a problem for Inventor?
- |> Can anyone tell me of his/her experience in using Inventor?
- |>
- I am just getting started with Inventor, but have scanned the painful manuals
- and have a good feel for its power and flexibility. One of the strong suits is
- the object oriented (not!) and C++ functionality. What this allows YOU
- to do, is
- to think about adding a class (which is much harder than using Inventor)
- for your
- couple thousand of POLYGONS. Then you can define several renderers for
- this class,
- the default being your meshing into triangles. This buys you the advantage of
- having a set of renderers for different time/quality trade-offs. For
- interactive
- rotations, render in a streamlined fashion, when the mouse stops update
- the display.
-
- We are thinking of adding a volumetric (polyhedra) class that does this.
-
- |> Please send replies to me by email. If there comes something of
- |> interst for others in the same situation, I will place an article
- |> with this information.
- |>
- Oops. okay I will do that too.
-
- |> Thank you in advance.
- |
- Your welcome (if it was of any help). I tried my best (if not).
-
- Roger A. Crawfis
- Lawrence Livermore National Laboratory
- (510) 423-1320
- (crawfis@llnl.gov)
-